Add HOMEBREW_INSTALL_BADGE environment variable

with which the beer emoji displayed upon successful build
can be changed.

Closes Homebrew/homebrew#23194.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

2 files changed, 7 insertions, 2 deletions

diff --git a/Library/Contributions/manpages/brew.1.md b/Library/Contributions/manpages/brew.1.md
index 14571be48..6ba333e06 100644
--- a/Library/Contributions/manpages/brew.1.md
+++ b/Library/Contributions/manpages/brew.1.md
@@ -518,7 +518,8 @@ can take several different forms:
     *Default:* the number of available CPU cores.
 
   * HOMEBREW\_NO\_EMOJI:
-    If set, Homebrew will not print the beer emoji on a successful build.
+    If set, Homebrew will not print the `HOMEBREW_INSTALL_BADGE` on a
+    successful build.
 
     *Note:* Homebrew will only try to print emoji on Lion or newer.
 
@@ -526,6 +527,10 @@ can take several different forms:
     If set, Homebrew will not use the GitHub API for e.g searches or
     fetching relevant issues on a failed install.
 
+  * HOMEBREW\_INSTALL\_BADGE:
+    Text printed before the installation summary of each successful build.
+    Defaults to the beer emoji.
+
   * HOMEBREW\_SOURCEFORGE\_MIRROR:
     If set, Homebrew will use the value of `HOMEBREW_SOURCEFORGE_MIRROR` to
     select a SourceForge mirror for downloading bottles.
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 156e1737f..c0348fe51 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -314,7 +314,7 @@ class FormulaInstaller
 
     ohai "Summary" if ARGV.verbose? or show_summary_heading
     unless ENV['HOMEBREW_NO_EMOJI']
-      print "\xf0\x9f\x8d\xba  " if MacOS.version >= :lion
+      print "#{ENV['HOMEBREW_INSTALL_BADGE'] || "\xf0\x9f\x8d\xba"}  " if MacOS.version >= :lion
     end
     print "#{f.prefix}: #{f.prefix.abv}"
     print ", built in #{pretty_duration build_time}" if build_time